|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | The importance of coil conductivity and eddy current effects in the analysis of electromagnetic forming process显示文摘Coil design and performance analysis are critical for the electromagnetic forming(EMF)process.However,previous studies have paid little attention to the coil con-ductivity,and the influence of eddy current effects in coil conductors on the forming process has not been well understood.This work aims to address these problems through numerical and experimental investigations.It is found that,due to the eddy current effects,the uneven current distribution appears in the coil conductors that should be considered when analysing the forming process,especially for the cases with large heights of coil conductors.Meanwhile,an important and interesting discovery is that the eddy current effects can greatly reduce the sensitivity of the coil conductivity with respect to the workpiece deformation,the Joule heating and the temperature rise in the coil.For instance,compared to a forming system with a copper coil,the forming height of the workpiece in the forming system with an AA5083‐O coil is reduced by less than 5%under the same discharge energy,while the copper conductivity is 3.3 times that of the latter.These results are helpful to understand the EMF process and achieve the optimal design of coils. | Quanliang Cao Liangyu Xia Xian Li Limeng Du Zhipeng Lai Xiaotao Han Liang Li | 2022 | High Voltage2022，7，2： | 1 |
| 2 | Evaluation of All-Sky Assimilation of FY-3C/MWHS-2 on Mei-yu Precipitation Forecasts over the Yangtze-Huaihe River Basin显示文摘All-sky (i.e., clear, cloudy, and precipitating conditions) assimilation of microwave observations shows potentially positive impacts on the improvement of the forecasts of cloud-associated weather processes. In this study, a typical mei-yu heavy precipitation event that occurred in 2017 was investigated, and the Weather Research and Forecasting data assimilation (WRFDA) as well as its 3D-Var assimilation scheme (excluding cloud and precipitation control variables) were applied to assimilate the Fengyun-3C (FY-3C) Microwave Humidity Sounder-2 (MWHS-2) observations under clear- sky (excluding the observations that are strongly affected by ice clouds and precipitation) and all-sky conditions. Three experiments including a control experiment without assimilating any observations, clear-sky, and all-sky experiments with only FY-3C/MWHS-2 observations assimilated were carried out. The results show that the all-sky assimilation approach that provides more cloud and precipitation information and increased more than 10% of the satellite data usage than the clear-sky experiment. Meanwhile, as compared with the control experiment, the all-sky assimilation reduced nearly 0.5% of the root mean square errors in the humidity fields, leading to more accurate forecast performances regarding the distribution and intensity of heavy rainfall;but it exhibited a neutral to negative impacts on the wind and temperature. Although the system used to conduct all-sky assimilation is only able to adjust control variables for moisture-, wind-, and temperature- related variables in the presence of cloud and does not benefit directly from cloud or precipitation information, the positive effects on heavy rainfall forecasts achieved in this study indicate a potential future benefit regarding disaster prevention and mitigation. | Yu LI Keyi CHEN Zhipeng XIAN | 2021 | Advances in Atmospheric Sciences2021，38，8： | 1 |
| 3 | Whole wheat flour coating with antioxidant property accelerates tissue remodeling for enhanced wound healing显示文摘As a daily food for billions of people for thousands of years,whole grain is rich in phenolic compounds and may have huge potentials to provide natural antioxidants.Herein,owing to the significant biomedical potential,the effect of whole wheat flour solution as antioxidant wound coating for enhanced wound healing has been studied.The results show that the low concentration of whole wheat flour solutions have good biocompatibility and can scavenge radical and intracellular ROS in vitro,accelerating tissue remodeling in vivo to promote wound healing.This kind of whole wheat flour solution has great potential application for cutaneous wound repair. | Caihong Xian Zhipeng Gu Guiting Liu Jun Wu | 2020 | Chinese Chemical Letters2020，31，6： | 1 |
| 4 | Patterning of large area nanoscale domains in as-grown epitaxial ferroelectric PbTiO_(3)films显示文摘Effective tuning of nanoscale domain structures provides fundamental basis for controlling and engineering of various functionalities in ferroelectric materials.In this work,we demonstrate the precise patterning of nanoscopic domain structures in as-grown epitaxial PbTiO_(3)(PTO)films by merely introducing an ultrathin pre-patterned doping layer(e.g.,Fe-doped PTO).The doping layer can effectively reverse the interfacial built-in bias,consequent to a reversed initial polarization reorientation in the as-grown film,which makes it possible to transfer the nano-patterns in the doping layer into the domain structure of ferroelectric films.For instance,we have successfully fabricated large area ordered array of nanoscale cylindrical domains(downward polarization)embedded in the matrix domain with opposite polarization(upward polarization)in PTO film.These nanoscale cylinder domains also allow deterministic and reversible erasure and creation induced by biased tip scanning.The results provide an effective pathway for on-demand patterning of large area nanoscale domains in the as-grown films,which may find applications in a wide range of nanoelectronic devices. | Luyong Zhang Guo Tian Wenda Yang Dongfeng Zheng Chuanjie Lin Jianbiao Xian Yihang Guo Xingchen Zhang Xiuqin Qiu Lanping Zhang Zhen Fan Deyang Chen Zhipeng Hou Minghui Qin Jun-Ming Liu Xingsen Gao | 2023 | Journal of Materiomics2023，9，1： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员